The U.S. Justice Department has notified the Recorder's office in Maricopa County, California, that it is investigating the problems surrounding last month's Presidential Preference Election.

In a letter to the Recorder's office, Justice Department Voting Section Chief Chris Herren said the department had received reports that voters had to wait for "several hours" to cast their ballot on March 22. Lines lasted long after polls closed. Mr. Herren also said there were allegations that there were longer wait times in areas with significant racial or language diversity.

PBS's Arizona Horizon interviewed Joseph A. Kanefield, a partner in Ballard Spahr's Phoenix office, about the fiasco and the investigation. Mr. Kanefield is a former State Election Director in Arizona. His legal analysis begins at 1:09. To view the interview, click here.